Monarch Butterfly Migration & Milkweed Phenology Project

Note: Observations highlighted in this report are from September 10–16. To explore more recent observations, check out "The Leading Edge" section of the news update and explore our maps.

Breeding, Eggs and Larvae

In the northern U.S., Journey North citizen scientists noted late-season breeding and monarch eggs and larvae.

09/21/2021 Visiting Asclepius subulata

https://journeynorth.org/sightings/query_result.html?record_id=1526545904

09/21/2021 Along Highway 337

https://journeynorth.org/sightings/query_result.html?record_id=1526545132

09/21/2021 Enjoying Zinnias

https://journeynorth.org/sightings/query_result.html?record_id=1526545262

09/21/2021 Feeding on Rabbitbrush

https://journeynorth.org/sightings/query_result.html?record_id=1526545897

09/21/2021 Grand Canyon North Rim Monarch

https://journeynorth.org/sightings/query_result.html?record_id=1526544572

09/21/2021 First of the Season

https://journeynorth.org/sightings/query_result.html?record_id=1526544027

Read more about 09/21/2021 Letter from Gail Morris: Western Monarch Fall 2021 Report #3

Published: 09/22/2021

Note: Observations highlighted in this report are from September 8–September 16. To explore more recent observations, check out "The Leading Edge" section of the news update and explore our maps.

Dear Western Monarch Friends,

09/15/2021 On the Nectar Trail

Fall begins next week and monarch migration is well underway as reports of nectaring, flying, and roosting continue to come in.

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